The background seems to be a soft calming pale warm grey which I would try to match on the other walls and pick up the yellow in some of the accents such as lamp bases, curtains, cushions, a throw for the bed or even upholster a chair or long bench for the end of the bed if there is room for it. I would use a deeper tone of the grey or an aubergine in some other accent pieces, perhaps the bedhead or bedside tables.

I love Josette wallpaper. I used it on my chimney breast in my old bedroom. Loved it so much, another shade went up under the dado up the stairs and in the hall in my house too. We then moved and we have it now in our new bedroom in yet another shade! I put the paper up in my old bedroom. It’s tricky but not the worst paper I have ever hung.

I don't think it's going to be as hard as you think. I would imagine the top layer is going to peel off relatively easily. Then work on one wall at a time..............score the backing paper ( you can use a paint scraper ), fully soak the wall all over ( using a big car sponge - and i mean soak it ), then go back to the beginning and re-soak an area of around 6-8 feet at a time. Scrape the paper in an upwards but slightly sideways direction, It should hopefully come off ok. Steamers are a waste of time! The old fashioned way, worked well enough for decades! Good luck x

The first paper visualises tin ceilings of the late 19th and early 20th centuries. It was usually painted over in gloss paint to allow easy cleaning. Using this paper would create a very shabby chic room. Unless you're opting for a classic look or a very carefully contrived eclectic look, I wouldn't use the 2nd paper. Paper 3 will give you a classic wood paneled effect. Using it all over may be overpowering in a small room. Consider using it on the lower half of all 4 walls or just as a feature wall.